Atmel Evaluation Kit AT91SAM9X25-EK AT91SAM9X25-EK 数据表

产品代码
AT91SAM9X25-EK
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页码 1151
940
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
41.9.12 CAN Write Protection Mode Register
Name:
CAN_WPMR
Address:
0xF80000E4 (0), 0xF80040E4 (1)
Access:
Read-write 
• WPEN: Write Protection Enable
0: The Write Protection is Disabled
1: The Write Protection is Enabled
• WPKEY: SPI Write Protection Key Password
If a value is written in WPEN, the value is taken into account only if WPKEY is written with “CAN” (CAN written in ASCII Code, ie 
0x43414E in hexadecimal).
Protects the registers:
31
30
29
28
27
26
25
24
WPKEY
23
22
21
20
19
18
17
16
WPKEY
15
14
13
12
11
10
9
8
WPKEY
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
WPEN